Yemen’s political crisis escalated this weekafter violent clashes in the capital, Sanaa,dimmed hopes that a negotiated settlementcould bring a swift halt to the ongoing un-rest. There are now fears of all-out civil warif the violence continues and other actorsjoin the fighting.The latest clashes, which began on Mon-day, pit forces loyal to President Ali AbdullahSaleh against supporters of Sadiq al-Ahmar,the leader of a powerful tribal federationknown as the Hashid.
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